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<pre><span class="sourceLineNo">001</span>/*-<a name="line.1"></a>
<span class="sourceLineNo">002</span> *******************************************************************************<a name="line.2"></a>
<span class="sourceLineNo">003</span> * Copyright (c) 2011, 2016 Diamond Light Source Ltd.<a name="line.3"></a>
<span class="sourceLineNo">004</span> * All rights reserved. This program and the accompanying materials<a name="line.4"></a>
<span class="sourceLineNo">005</span> * are made available under the terms of the Eclipse Public License v1.0<a name="line.5"></a>
<span class="sourceLineNo">006</span> * which accompanies this distribution, and is available at<a name="line.6"></a>
<span class="sourceLineNo">007</span> * http://www.eclipse.org/legal/epl-v10.html<a name="line.7"></a>
<span class="sourceLineNo">008</span> *<a name="line.8"></a>
<span class="sourceLineNo">009</span> * Contributors:<a name="line.9"></a>
<span class="sourceLineNo">010</span> *    Peter Chang - initial API and implementation and/or initial documentation<a name="line.10"></a>
<span class="sourceLineNo">011</span> *******************************************************************************/<a name="line.11"></a>
<span class="sourceLineNo">012</span><a name="line.12"></a>
<span class="sourceLineNo">013</span>package org.eclipse.january.dataset;<a name="line.13"></a>
<span class="sourceLineNo">014</span><a name="line.14"></a>
<span class="sourceLineNo">015</span>import java.util.Arrays;<a name="line.15"></a>
<span class="sourceLineNo">016</span><a name="line.16"></a>
<span class="sourceLineNo">017</span>import org.eclipse.january.DatasetException;<a name="line.17"></a>
<span class="sourceLineNo">018</span>import org.eclipse.january.IMonitor;<a name="line.18"></a>
<span class="sourceLineNo">019</span>import org.eclipse.january.metadata.StatisticsMetadata;<a name="line.19"></a>
<span class="sourceLineNo">020</span>import org.eclipse.january.metadata.internal.StatisticsMetadataImpl;<a name="line.20"></a>
<span class="sourceLineNo">021</span><a name="line.21"></a>
<span class="sourceLineNo">022</span>/**<a name="line.22"></a>
<span class="sourceLineNo">023</span> * Generic container class for data that is compound in nature<a name="line.23"></a>
<span class="sourceLineNo">024</span> * <a name="line.24"></a>
<span class="sourceLineNo">025</span> * Each subclass has an array of compound types, items of this array are composed of primitive types<a name="line.25"></a>
<span class="sourceLineNo">026</span> * <a name="line.26"></a>
<span class="sourceLineNo">027</span> * Data items can be Complex, Vector, etc<a name="line.27"></a>
<span class="sourceLineNo">028</span> * <a name="line.28"></a>
<span class="sourceLineNo">029</span> */<a name="line.29"></a>
<span class="sourceLineNo">030</span>public abstract class AbstractCompoundDataset extends AbstractDataset implements CompoundDataset {<a name="line.30"></a>
<span class="sourceLineNo">031</span>        // pin UID to base class<a name="line.31"></a>
<span class="sourceLineNo">032</span>        private static final long serialVersionUID = Dataset.serialVersionUID;<a name="line.32"></a>
<span class="sourceLineNo">033</span><a name="line.33"></a>
<span class="sourceLineNo">034</span>        protected int isize; // number of elements per item<a name="line.34"></a>
<span class="sourceLineNo">035</span><a name="line.35"></a>
<span class="sourceLineNo">036</span>        @Override<a name="line.36"></a>
<span class="sourceLineNo">037</span>        public int getElementsPerItem() {<a name="line.37"></a>
<span class="sourceLineNo">038</span>                return isize;<a name="line.38"></a>
<span class="sourceLineNo">039</span>        }<a name="line.39"></a>
<span class="sourceLineNo">040</span><a name="line.40"></a>
<span class="sourceLineNo">041</span>        @Override<a name="line.41"></a>
<span class="sourceLineNo">042</span>        protected int get1DIndex(final int i) {<a name="line.42"></a>
<span class="sourceLineNo">043</span>                int n = super.get1DIndex(i);<a name="line.43"></a>
<span class="sourceLineNo">044</span>                return stride == null ? isize * n : n;<a name="line.44"></a>
<span class="sourceLineNo">045</span>        }<a name="line.45"></a>
<span class="sourceLineNo">046</span><a name="line.46"></a>
<span class="sourceLineNo">047</span>        @Override<a name="line.47"></a>
<span class="sourceLineNo">048</span>        protected int get1DIndex(final int i, final int j) {<a name="line.48"></a>
<span class="sourceLineNo">049</span>                int n = super.get1DIndex(i, j);<a name="line.49"></a>
<span class="sourceLineNo">050</span>                return stride == null ? isize * n : n;<a name="line.50"></a>
<span class="sourceLineNo">051</span>        }<a name="line.51"></a>
<span class="sourceLineNo">052</span><a name="line.52"></a>
<span class="sourceLineNo">053</span>        @Override<a name="line.53"></a>
<span class="sourceLineNo">054</span>        protected int get1DIndexFromShape(final int[] n) {<a name="line.54"></a>
<span class="sourceLineNo">055</span>                return isize * super.get1DIndexFromShape(n);<a name="line.55"></a>
<span class="sourceLineNo">056</span>        }<a name="line.56"></a>
<span class="sourceLineNo">057</span><a name="line.57"></a>
<span class="sourceLineNo">058</span>        @Override<a name="line.58"></a>
<span class="sourceLineNo">059</span>        public Dataset getUniqueItems() {<a name="line.59"></a>
<span class="sourceLineNo">060</span>                throw new UnsupportedOperationException("Cannot sort compound datasets");<a name="line.60"></a>
<span class="sourceLineNo">061</span>        }<a name="line.61"></a>
<span class="sourceLineNo">062</span><a name="line.62"></a>
<span class="sourceLineNo">063</span>        @Override<a name="line.63"></a>
<span class="sourceLineNo">064</span>        public IndexIterator getIterator(final boolean withPosition) {<a name="line.64"></a>
<span class="sourceLineNo">065</span>                if (stride != null) {<a name="line.65"></a>
<span class="sourceLineNo">066</span>                        return base.getSize() == 1 ? <a name="line.66"></a>
<span class="sourceLineNo">067</span>                                        (withPosition ? new PositionIterator(offset, shape) :  new SingleItemIterator(offset, size)) : new StrideIterator(isize, shape, stride, offset);<a name="line.67"></a>
<span class="sourceLineNo">068</span>                }<a name="line.68"></a>
<span class="sourceLineNo">069</span>                return withPosition ? getSliceIterator(null, null, null) :<a name="line.69"></a>
<span class="sourceLineNo">070</span>                        new ContiguousIterator(size, isize);<a name="line.70"></a>
<span class="sourceLineNo">071</span>        }<a name="line.71"></a>
<span class="sourceLineNo">072</span><a name="line.72"></a>
<span class="sourceLineNo">073</span>        /**<a name="line.73"></a>
<span class="sourceLineNo">074</span>         * Get an iterator that picks out the chosen element from all items<a name="line.74"></a>
<span class="sourceLineNo">075</span>         * @param element<a name="line.75"></a>
<span class="sourceLineNo">076</span>         * @return an iterator<a name="line.76"></a>
<span class="sourceLineNo">077</span>         */<a name="line.77"></a>
<span class="sourceLineNo">078</span>        public IndexIterator getIterator(int element) {<a name="line.78"></a>
<span class="sourceLineNo">079</span>                if (element &lt; 0)<a name="line.79"></a>
<span class="sourceLineNo">080</span>                        element += isize;<a name="line.80"></a>
<span class="sourceLineNo">081</span>                if (element &lt; 0 || element &gt; isize) {<a name="line.81"></a>
<span class="sourceLineNo">082</span>                        logger.error("Invalid choice of element: {}/{}", element, isize);<a name="line.82"></a>
<span class="sourceLineNo">083</span>                        throw new IllegalArgumentException("Invalid choice of element: " + element + "/" + isize);<a name="line.83"></a>
<span class="sourceLineNo">084</span>                }<a name="line.84"></a>
<span class="sourceLineNo">085</span><a name="line.85"></a>
<span class="sourceLineNo">086</span>                final IndexIterator it;<a name="line.86"></a>
<span class="sourceLineNo">087</span>                if (stride != null) {<a name="line.87"></a>
<span class="sourceLineNo">088</span>                        it = base.getSize() == 1 ? new SingleItemIterator(offset + element, size) : new StrideIterator(isize, shape, stride, offset, element);<a name="line.88"></a>
<span class="sourceLineNo">089</span>                } else {<a name="line.89"></a>
<span class="sourceLineNo">090</span>                        it = new ContiguousIterator(size, isize, element);<a name="line.90"></a>
<span class="sourceLineNo">091</span>                }<a name="line.91"></a>
<span class="sourceLineNo">092</span><a name="line.92"></a>
<span class="sourceLineNo">093</span>                return it;<a name="line.93"></a>
<span class="sourceLineNo">094</span>        }<a name="line.94"></a>
<span class="sourceLineNo">095</span><a name="line.95"></a>
<span class="sourceLineNo">096</span>        @Override<a name="line.96"></a>
<span class="sourceLineNo">097</span>        public IndexIterator getSliceIterator(SliceND slice) {<a name="line.97"></a>
<span class="sourceLineNo">098</span>                if (stride != null)<a name="line.98"></a>
<span class="sourceLineNo">099</span>                        return new StrideIterator(isize, shape, stride, offset, slice);<a name="line.99"></a>
<span class="sourceLineNo">100</span><a name="line.100"></a>
<span class="sourceLineNo">101</span>                return new SliceIterator(shape, size, isize, slice);<a name="line.101"></a>
<span class="sourceLineNo">102</span>        }<a name="line.102"></a>
<span class="sourceLineNo">103</span><a name="line.103"></a>
<span class="sourceLineNo">104</span>        /**<a name="line.104"></a>
<span class="sourceLineNo">105</span>         * Constructor required for serialisation.<a name="line.105"></a>
<span class="sourceLineNo">106</span>         */<a name="line.106"></a>
<span class="sourceLineNo">107</span>        public AbstractCompoundDataset() {<a name="line.107"></a>
<span class="sourceLineNo">108</span>        }<a name="line.108"></a>
<span class="sourceLineNo">109</span><a name="line.109"></a>
<span class="sourceLineNo">110</span>        @Override<a name="line.110"></a>
<span class="sourceLineNo">111</span>        public boolean equals(Object obj) {<a name="line.111"></a>
<span class="sourceLineNo">112</span>                if (!super.equals(obj)) {<a name="line.112"></a>
<span class="sourceLineNo">113</span>                        return false;<a name="line.113"></a>
<span class="sourceLineNo">114</span>                }<a name="line.114"></a>
<span class="sourceLineNo">115</span><a name="line.115"></a>
<span class="sourceLineNo">116</span>                CompoundDataset other = (CompoundDataset) obj;<a name="line.116"></a>
<span class="sourceLineNo">117</span>                return isize == other.getElementsPerItem();<a name="line.117"></a>
<span class="sourceLineNo">118</span>        }<a name="line.118"></a>
<span class="sourceLineNo">119</span><a name="line.119"></a>
<span class="sourceLineNo">120</span>        @Override<a name="line.120"></a>
<span class="sourceLineNo">121</span>        public int hashCode() {<a name="line.121"></a>
<span class="sourceLineNo">122</span>                return getCompoundStats().getHash(shape);<a name="line.122"></a>
<span class="sourceLineNo">123</span>        }<a name="line.123"></a>
<span class="sourceLineNo">124</span><a name="line.124"></a>
<span class="sourceLineNo">125</span>        @Override<a name="line.125"></a>
<span class="sourceLineNo">126</span>        public CompoundDataset cast(boolean repeat, int dtype, int isize) {<a name="line.126"></a>
<span class="sourceLineNo">127</span>                return (CompoundDataset) super.cast(repeat, dtype, isize);<a name="line.127"></a>
<span class="sourceLineNo">128</span>        }<a name="line.128"></a>
<span class="sourceLineNo">129</span><a name="line.129"></a>
<span class="sourceLineNo">130</span>        @Override<a name="line.130"></a>
<span class="sourceLineNo">131</span>        public CompoundDataset cast(int dtype) {<a name="line.131"></a>
<span class="sourceLineNo">132</span>                return (CompoundDataset) super.cast(dtype);<a name="line.132"></a>
<span class="sourceLineNo">133</span>        }<a name="line.133"></a>
<span class="sourceLineNo">134</span><a name="line.134"></a>
<span class="sourceLineNo">135</span>        @Override<a name="line.135"></a>
<span class="sourceLineNo">136</span>        abstract public AbstractCompoundDataset clone();<a name="line.136"></a>
<span class="sourceLineNo">137</span><a name="line.137"></a>
<span class="sourceLineNo">138</span>        @Override<a name="line.138"></a>
<span class="sourceLineNo">139</span>        public CompoundDataset flatten() {<a name="line.139"></a>
<span class="sourceLineNo">140</span>                return (CompoundDataset) super.flatten();<a name="line.140"></a>
<span class="sourceLineNo">141</span>        }<a name="line.141"></a>
<span class="sourceLineNo">142</span><a name="line.142"></a>
<span class="sourceLineNo">143</span>        @Override<a name="line.143"></a>
<span class="sourceLineNo">144</span>        public CompoundDataset getBy1DIndex(IntegerDataset index) {<a name="line.144"></a>
<span class="sourceLineNo">145</span>                return (CompoundDataset) super.getBy1DIndex(index);<a name="line.145"></a>
<span class="sourceLineNo">146</span>        }<a name="line.146"></a>
<span class="sourceLineNo">147</span><a name="line.147"></a>
<span class="sourceLineNo">148</span>        @Override<a name="line.148"></a>
<span class="sourceLineNo">149</span>        public CompoundDataset getByBoolean(Dataset selection) {<a name="line.149"></a>
<span class="sourceLineNo">150</span>                return (CompoundDataset) super.getByBoolean(selection);<a name="line.150"></a>
<span class="sourceLineNo">151</span>        }<a name="line.151"></a>
<span class="sourceLineNo">152</span><a name="line.152"></a>
<span class="sourceLineNo">153</span>        @Override<a name="line.153"></a>
<span class="sourceLineNo">154</span>        public CompoundDataset getByIndexes(Object... indexes) {<a name="line.154"></a>
<span class="sourceLineNo">155</span>                return (CompoundDataset) super.getByIndexes(indexes);<a name="line.155"></a>
<span class="sourceLineNo">156</span>        }<a name="line.156"></a>
<span class="sourceLineNo">157</span><a name="line.157"></a>
<span class="sourceLineNo">158</span>        @Override<a name="line.158"></a>
<span class="sourceLineNo">159</span>        public CompoundDataset getSlice(IMonitor mon, int[] start, int[] stop, int[] step) {<a name="line.159"></a>
<span class="sourceLineNo">160</span>                return (CompoundDataset) super.getSlice(mon, start, stop, step);<a name="line.160"></a>
<span class="sourceLineNo">161</span>        }<a name="line.161"></a>
<span class="sourceLineNo">162</span><a name="line.162"></a>
<span class="sourceLineNo">163</span>        @Override<a name="line.163"></a>
<span class="sourceLineNo">164</span>        public CompoundDataset getSlice(IMonitor mon, Slice... slice) {<a name="line.164"></a>
<span class="sourceLineNo">165</span>                return (CompoundDataset) super.getSlice(mon, slice);<a name="line.165"></a>
<span class="sourceLineNo">166</span>        }<a name="line.166"></a>
<span class="sourceLineNo">167</span><a name="line.167"></a>
<span class="sourceLineNo">168</span>        @Override<a name="line.168"></a>
<span class="sourceLineNo">169</span>        public CompoundDataset getSlice(IMonitor mon, SliceND slice) {<a name="line.169"></a>
<span class="sourceLineNo">170</span>                return (CompoundDataset) super.getSlice(mon, slice);<a name="line.170"></a>
<span class="sourceLineNo">171</span>        }<a name="line.171"></a>
<span class="sourceLineNo">172</span><a name="line.172"></a>
<span class="sourceLineNo">173</span>        @Override<a name="line.173"></a>
<span class="sourceLineNo">174</span>        public CompoundDataset getSlice(int[] start, int[] stop, int[] step) {<a name="line.174"></a>
<span class="sourceLineNo">175</span>                return (CompoundDataset) super.getSlice(start, stop, step);<a name="line.175"></a>
<span class="sourceLineNo">176</span>        }<a name="line.176"></a>
<span class="sourceLineNo">177</span><a name="line.177"></a>
<span class="sourceLineNo">178</span>        @Override<a name="line.178"></a>
<span class="sourceLineNo">179</span>        public CompoundDataset getSlice(Slice... slice) {<a name="line.179"></a>
<span class="sourceLineNo">180</span>                return (CompoundDataset) super.getSlice(slice);<a name="line.180"></a>
<span class="sourceLineNo">181</span>        }<a name="line.181"></a>
<span class="sourceLineNo">182</span><a name="line.182"></a>
<span class="sourceLineNo">183</span>        @Override<a name="line.183"></a>
<span class="sourceLineNo">184</span>        public CompoundDataset getSlice(SliceND slice) {<a name="line.184"></a>
<span class="sourceLineNo">185</span>                return (CompoundDataset) super.getSlice(slice);<a name="line.185"></a>
<span class="sourceLineNo">186</span>        }<a name="line.186"></a>
<span class="sourceLineNo">187</span><a name="line.187"></a>
<span class="sourceLineNo">188</span>        @Override<a name="line.188"></a>
<span class="sourceLineNo">189</span>        abstract public AbstractCompoundDataset getSlice(SliceIterator iterator);<a name="line.189"></a>
<span class="sourceLineNo">190</span><a name="line.190"></a>
<span class="sourceLineNo">191</span>        @Override<a name="line.191"></a>
<span class="sourceLineNo">192</span>        public CompoundDataset getSliceView(int[] start, int[] stop, int[] step) {<a name="line.192"></a>
<span class="sourceLineNo">193</span>                return (CompoundDataset) super.getSliceView(start, stop, step);<a name="line.193"></a>
<span class="sourceLineNo">194</span>        }<a name="line.194"></a>
<span class="sourceLineNo">195</span><a name="line.195"></a>
<span class="sourceLineNo">196</span>        @Override<a name="line.196"></a>
<span class="sourceLineNo">197</span>        public CompoundDataset getSliceView(Slice... slice) {<a name="line.197"></a>
<span class="sourceLineNo">198</span>                return (CompoundDataset) super.getSliceView(slice);<a name="line.198"></a>
<span class="sourceLineNo">199</span>        }<a name="line.199"></a>
<span class="sourceLineNo">200</span><a name="line.200"></a>
<span class="sourceLineNo">201</span>        @Override<a name="line.201"></a>
<span class="sourceLineNo">202</span>        public CompoundDataset getSliceView(SliceND slice) {<a name="line.202"></a>
<span class="sourceLineNo">203</span>                return (CompoundDataset) super.getSliceView(slice);<a name="line.203"></a>
<span class="sourceLineNo">204</span>        }<a name="line.204"></a>
<span class="sourceLineNo">205</span><a name="line.205"></a>
<span class="sourceLineNo">206</span>        @Override<a name="line.206"></a>
<span class="sourceLineNo">207</span>        public CompoundDataset getTransposedView(int... axes) {<a name="line.207"></a>
<span class="sourceLineNo">208</span>                return (CompoundDataset) super.getTransposedView(axes);<a name="line.208"></a>
<span class="sourceLineNo">209</span>        }<a name="line.209"></a>
<span class="sourceLineNo">210</span><a name="line.210"></a>
<span class="sourceLineNo">211</span>        @Override<a name="line.211"></a>
<span class="sourceLineNo">212</span>        abstract public AbstractCompoundDataset getView(boolean deepCopyMetadata);<a name="line.212"></a>
<span class="sourceLineNo">213</span><a name="line.213"></a>
<span class="sourceLineNo">214</span>        @Override<a name="line.214"></a>
<span class="sourceLineNo">215</span>        public CompoundDataset getBroadcastView(int... broadcastShape) {<a name="line.215"></a>
<span class="sourceLineNo">216</span>                return (CompoundDataset) super.getBroadcastView(broadcastShape);<a name="line.216"></a>
<span class="sourceLineNo">217</span>        }<a name="line.217"></a>
<span class="sourceLineNo">218</span><a name="line.218"></a>
<span class="sourceLineNo">219</span>        @Override<a name="line.219"></a>
<span class="sourceLineNo">220</span>        public CompoundDataset ifloorDivide(Object o) {<a name="line.220"></a>
<span class="sourceLineNo">221</span>                return (CompoundDataset) super.ifloorDivide(o);<a name="line.221"></a>
<span class="sourceLineNo">222</span>        }<a name="line.222"></a>
<span class="sourceLineNo">223</span><a name="line.223"></a>
<span class="sourceLineNo">224</span>        @Override<a name="line.224"></a>
<span class="sourceLineNo">225</span>        public CompoundDataset reshape(int... shape) {<a name="line.225"></a>
<span class="sourceLineNo">226</span>                return (CompoundDataset) super.reshape(shape);<a name="line.226"></a>
<span class="sourceLineNo">227</span>        }<a name="line.227"></a>
<span class="sourceLineNo">228</span><a name="line.228"></a>
<span class="sourceLineNo">229</span>        @Override<a name="line.229"></a>
<span class="sourceLineNo">230</span>        public CompoundDataset setSlice(Object obj, int[] start, int[] stop, int[] step) {<a name="line.230"></a>
<span class="sourceLineNo">231</span>                return (CompoundDataset) super.setSlice(obj, start, stop, step);<a name="line.231"></a>
<span class="sourceLineNo">232</span>        }<a name="line.232"></a>
<span class="sourceLineNo">233</span><a name="line.233"></a>
<span class="sourceLineNo">234</span>        @Override<a name="line.234"></a>
<span class="sourceLineNo">235</span>        public CompoundDataset setSlice(Object object, Slice... slice) {<a name="line.235"></a>
<span class="sourceLineNo">236</span>                return (CompoundDataset) super.setSlice(object, slice);<a name="line.236"></a>
<span class="sourceLineNo">237</span>        }<a name="line.237"></a>
<span class="sourceLineNo">238</span><a name="line.238"></a>
<span class="sourceLineNo">239</span>        @Override<a name="line.239"></a>
<span class="sourceLineNo">240</span>        public CompoundDataset sort(Integer axis) {<a name="line.240"></a>
<span class="sourceLineNo">241</span>                throw new UnsupportedOperationException("Cannot sort dataset");<a name="line.241"></a>
<span class="sourceLineNo">242</span>        }<a name="line.242"></a>
<span class="sourceLineNo">243</span><a name="line.243"></a>
<span class="sourceLineNo">244</span>        @Override<a name="line.244"></a>
<span class="sourceLineNo">245</span>        public CompoundDataset squeezeEnds() {<a name="line.245"></a>
<span class="sourceLineNo">246</span>                return (CompoundDataset) super.squeezeEnds();<a name="line.246"></a>
<span class="sourceLineNo">247</span>        }<a name="line.247"></a>
<span class="sourceLineNo">248</span><a name="line.248"></a>
<span class="sourceLineNo">249</span>        @Override<a name="line.249"></a>
<span class="sourceLineNo">250</span>        public CompoundDataset squeeze() {<a name="line.250"></a>
<span class="sourceLineNo">251</span>                return (CompoundDataset) super.squeeze();<a name="line.251"></a>
<span class="sourceLineNo">252</span>        }<a name="line.252"></a>
<span class="sourceLineNo">253</span><a name="line.253"></a>
<span class="sourceLineNo">254</span>        @Override<a name="line.254"></a>
<span class="sourceLineNo">255</span>        public CompoundDataset squeeze(boolean onlyFromEnd) {<a name="line.255"></a>
<span class="sourceLineNo">256</span>                return (CompoundDataset) super.squeeze(onlyFromEnd);<a name="line.256"></a>
<span class="sourceLineNo">257</span>        }<a name="line.257"></a>
<span class="sourceLineNo">258</span><a name="line.258"></a>
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</pre>
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